AD538 SPICE model?

C

Chaos Master

Guest
Hi.

Anybody here has a SPICE model for AD538 IC? It's IC used for
applications like multiplication, division and square root of voltage.

My simulators are SIMetrix and LTSpice.

Thanks!
--
Chaos MasterŽ, posting from Canoas, Brazil - 29.55° S / 51.11° W

"People told me I can't dress like a fairy.
I say, I'm in a rock band and I can do what the hell I want!"
-- Amy Lee

NOTE: messages are automatically sent after 00:00AM! I'm on dial-up!
 
"Chaos Master" <e-mail@is.INVALID> wrote in message
news:MPG.1c2e63e3ef11e1049897cb@130.133.1.4...
Hi.

Anybody here has a SPICE model for AD538 IC? It's IC used for
applications like multiplication, division and square root of voltage.

My simulators are SIMetrix and LTSpice.
Click to expand...
The block diagram probably has enough detail for you to create your own
model.

Leon
 
This is Leon Heller for forever:

The block diagram probably has enough detail for you to create your own
model.
Click to expand...
Here comes the problem!

I almost don't have any knowledge in making models from a block diagram
:(
--
Chaos MasterŽ, posting from Canoas, Brazil - 29.55° S / 51.11° W

"People told me I can't dress like a fairy.
I say, I'm in a rock band and I can do what the hell I want!"
-- Amy Lee

NOTE: messages are automatically sent after 00:00AM! I'm on dial-up!
 
Chaos Master wrote:
This is Leon Heller for forever:

The block diagram probably has enough detail for you to create your
own model.

Here comes the problem!

I almost don't have any knowledge in making models from a block
diagram :(
Click to expand...
Then now would be a good time to start learning.

Kevin Aylward
salesEXTRACT@anasoft.co.uk
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.
 
"Chaos Master" <e-mail@is.INVALID> wrote in message
news:MPG.1c2ed2877fe761369897cc@130.133.1.4...
This is Leon Heller for forever:

The block diagram probably has enough detail for you to create your own
model.

Here comes the problem!

I almost don't have any knowledge in making models from a block diagram
Click to expand...
It's just a schematic; it even gives the resistor values. Make some
assumtions about the transistors, and it should be quite easy.

Leon
 
This is Leon Heller for forever:

It's just a schematic; it even gives the resistor values. Make some
assumtions about the transistors, and it should be quite easy.
Click to expand...
Then, it's easier. I will try to make my own model. I think I can draw
the schematic and make it into netlist for model.

[]s
--
Chaos MasterŽ, posting from Canoas, Brazil - 29.55° S / 51.11° W

"People told me I can't dress like a fairy.
I say, I'm in a rock band and I can do what the hell I want!"
-- Amy Lee

NOTE: messages are automatically sent after 00:00AM! I'm on dial-up!
 
On Sun, 19 Dec 2004 13:36:20 -0200, Chaos Master <e-mail@is.INVALID>
wrote:

This is Leon Heller for forever:

It's just a schematic; it even gives the resistor values. Make some
assumtions about the transistors, and it should be quite easy.

Then, it's easier. I will try to make my own model. I think I can draw
the schematic and make it into netlist for model.

[]s
Click to expand...
Any garden variety transistor will work, just choose one small enough
so it doesn't limit bandwidth.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
 
Jim Thompson wrote:
On Sun, 19 Dec 2004 13:36:20 -0200, Chaos Master <e-mail@is.INVALID
wrote:

This is Leon Heller for forever:

It's just a schematic; it even gives the resistor values. Make some
assumtions about the transistors, and it should be quite easy.

Then, it's easier. I will try to make my own model. I think I can
draw the schematic and make it into netlist for model.

[]s

Any garden variety transistor will work, just choose one small enough
so it doesn't limit bandwidth.
Click to expand...
One doesn't need transistors. e.g.

..subckt AD538 out 1 2 3
....

b1 out 0 v= v(1)*v(2)/v(3)
....
..ends

Or whatever it actually does.

Kevin Aylward
salesEXTRACT@anasoft.co.uk
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.
 
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